It is the distance between the lens diaphragm and the image plane.
即是镜头光圈与影像平面之间的距离。
The optical system of the micro digital sun sensor consists of APS CMOS image sensor and MEMS based diaphragm with pinhole array structure.
微型数字式太阳敏感器光学系统由APSCMOS图像传感器和基于MEMS工艺的小孔阵列式光线引入器组成。
Built-in optical system and adjustable iris diaphragm with clear image.
内置式显微光学系统及光栏，像质清晰。
The quality Of image and the effect of anopheline mosquito were better by using low power lens and low diaphragm.
用低倍镜小光圈成像质量好，解剖按蚊效果满意。
Camera extension: the length of bellows in a process camera. It is the distance between the lens diaphragm and the image plane.
暗箱：制版照相机上可以伸缩的部份，它连接起镜头和影像平面。
The resulting image at the eyepiece diaphragm level is actually a Mosaic of Airy disks which you perceive as light and dark.
最终在目镜光栏面上获得的成像实际是一个镶了边的艾利斑。
The resulting image at the eyepiece diaphragm level is actually a Mosaic of Airy disks which you perceive as light and dark.
最终在目镜光栏面上获得的成像实际是一个镶了边的艾利斑。
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